00311nam a2200121Ia 4500008004100000041000800041082002000049100002000069245003800089250001000127260004400137300000800181211209s1999    xx            000 0 und d  aeng  a511.622 N99 KOL  aKOLMAN, BERNARD  aDISCRETE MATHEMATICAL STRUCTURES   a3 ed.  aNEW DELHIbPRENTICE-HALL OF INDIAc1999  a524